Have you ever encounter a situation where you ask for a recipe from your friends and they say it cannot be share with others? Is the taste would be different once it shared? OR just an excuses for not letting others to have the same menu as yours and afraid it's better then you have?
As for me, the more you sharing your knowledge the more you will get. It doesn't make you less valuable when you do so and who know, one day you will need the same from others.
I believe, knowledge that we have is not belong to us. We only borrow it for the creator. Maybe you don't have enough money to give but the reward from your good deed (sharing some of your knowledge) is still the same.
1 hour ago